HUT65509A - Mikrocapsulation process - Google Patents

Mikrocapsulation process

Info

Publication number
HUT65509A
HUT65509A HU9301947A HU194793A HUT65509A HU T65509 A HUT65509 A HU T65509A HU 9301947 A HU9301947 A HU 9301947A HU 194793 A HU194793 A HU 194793A HU T65509 A HUT65509 A HU T65509A
Authority
HU
Hungary
Prior art keywords
emulsion
organic solution
herbicide
discrete droplets
organic
Prior art date
Application number
HU9301947A
Other languages
Hungarian (hu)
Other versions
HU215556B (en
HU9301947D0 (en
Inventor
Herbert B Scher
Marius Rodson
Original Assignee
Zeneca Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zeneca Inc filed Critical Zeneca Inc
Publication of HU9301947D0 publication Critical patent/HU9301947D0/en
Publication of HUT65509A publication Critical patent/HUT65509A/en
Publication of HU215556B publication Critical patent/HU215556B/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/26—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests in coated particulate form
    • A01N25/28—Microcapsules or nanocapsules
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
    • A01N37/22—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof the nitrogen atom being directly attached to an aromatic ring system, e.g. anilides
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
    • A01N37/26—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof containing the group; Thio analogues thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B01J13/06—Making microcapsules or microballoons by phase separation
    • B01J13/14—Polymerisation; cross-linking
    • B01J13/18—In situ polymerisation with all reactants being present in the same phase
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2984—Microcapsule with fluid core [includes liposome]
    • Y10T428/2985—Solid-walled microcapsule from synthetic polymer

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Plant Pathology (AREA)
  • Pest Control & Pesticides (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Agronomy & Crop Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Toxicology (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Medicinal Preparation (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • General Preparation And Processing Of Foods (AREA)

Abstract

Microcapsules containing a substantially water-insoluble liquid material, such as an anilide herbicide, and optionally also a herbicide antidote, within a porous shell to effect a slow rate of release of said herbicide (and optionally said antidote) through said shell, are produced by a process which comprises (a) providing an organic solution comprising said material and an etherified amino resin prepolymer dissolved therein which from about 50% to about 98% of the methylol groups of said prepolymer have been etherified with a C4-C10 alcohol; (b) creating an emulsion of said organic solution in a continuous phase aqueous solution comprising water and a surface-active agent, wherein said emulsion comprises discrete droplets of said organic solution, there being formed thereby an interface between the discrete droplets of organic solution and the surrounding continuous phase aqueous solution; and (c) causing in situ self-condensation and curing of said amino resin prepolymer in the organic phase of said discrete droplets adjacent to said interface by simultaneously heating said emulsion to a temperature between about 20 DEG C. to about 100 DEG C., and adding to said emulsion an acidifying agent and maintaining said emulsion at a pH of between about 0 to about 4 for a sufficient period of time to allow substantial completion of in situ condensation of said resin prepolymers to convert the liquid droplets of said organic solution to capsules consisting of solid permeable polymer shells enclosing said liquid material. Also disclosed are the microcapsules formed by the above-described process.
HU9301947A 1991-02-06 1991-12-12 Process for producing microcapsules containing alpha-chloro-6'-ethyl-n-(2-methoxy-1-methylethyl)-acetanilide HU215556B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/651,836 US5160529A (en) 1980-10-30 1991-02-06 Microcapsules and microencapsulation process

Publications (3)

Publication Number Publication Date
HU9301947D0 HU9301947D0 (en) 1993-09-28
HUT65509A true HUT65509A (en) 1994-06-28
HU215556B HU215556B (en) 1999-01-28

Family

ID=24614423

Family Applications (1)

Application Number Title Priority Date Filing Date
HU9301947A HU215556B (en) 1991-02-06 1991-12-12 Process for producing microcapsules containing alpha-chloro-6'-ethyl-n-(2-methoxy-1-methylethyl)-acetanilide

Country Status (14)

Country Link
US (1) US5160529A (en)
EP (1) EP0571396B1 (en)
KR (1) KR100188899B1 (en)
AT (1) ATE149285T1 (en)
AU (1) AU650504B2 (en)
BR (1) BR9107288A (en)
CA (1) CA2101641C (en)
DE (1) DE69125029T2 (en)
DK (1) DK0571396T3 (en)
ES (1) ES2098491T3 (en)
HU (1) HU215556B (en)
RU (1) RU2108035C1 (en)
WO (1) WO1992013448A1 (en)
ZA (1) ZA92821B (en)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
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US4956129A (en) * 1984-03-30 1990-09-11 Ici Americas Inc. Microencapsulation process
US5733561A (en) * 1991-06-12 1998-03-31 Mitsui Toatsu Chemicals, Incorporated Insecticide composition and production process thereof
US5576008A (en) * 1991-07-19 1996-11-19 Industrial Technology Research Institute Preparation of pesticide microcapsule
TW202378B (en) * 1991-09-11 1993-03-21 Ciba Geigy Ag
CA2150920A1 (en) * 1992-12-04 1994-06-23 George Bernard Beestman Microcapsule formulations of agricultural chemicals
SI9420069A (en) * 1993-11-15 1996-12-31 Zeneca Ltd Microcapsules containing suspensions of biologically active compounds
US5837653A (en) * 1995-12-21 1998-11-17 Basf Corporation Encapsulated plant growth regulator formulations
WO1997022252A1 (en) * 1995-12-21 1997-06-26 Basf Corporation Aminoethoxyvinylglycine in combination with mepiquat chloride
WO1997023133A1 (en) * 1995-12-21 1997-07-03 Basf Corporation Low rate application of inhibitors of ethylene biosynthesis or action
US5861360A (en) * 1995-12-21 1999-01-19 Basf Corporation Encapsulated plant growth regulator formulations and applications
EP0946089A1 (en) 1996-12-20 1999-10-06 Basf Corporation Plant growth regulators in pyrrolidone solvents
DE69821940T2 (en) 1997-06-30 2005-03-17 Monsanto Technology Llc AGRICULTURAL ACTIVE INGREDIENTS CONTAINING MICROPARTICLES
WO1999033341A1 (en) * 1997-12-24 1999-07-08 Kiwitech Limited Substantially water-insoluble matrix containing bioactive substances for slow release
JPH11322587A (en) * 1998-05-18 1999-11-24 Sumitomo Chem Co Ltd Method for microencapsulating a physiologically active substance solid at room temperature and microcapsule composition obtained by this method
US6544540B2 (en) 1998-07-29 2003-04-08 Syngenta Limited Base-triggered release microcapsules
CN1265872C (en) * 2000-06-05 2006-07-26 辛甄塔有限公司 Novel microcapsules
DE60116303T2 (en) * 2000-06-05 2006-07-06 Syngenta Ltd., Guildford NEW EMULSIONS
US6485736B1 (en) 2000-09-07 2002-11-26 Syngenta Ltd. Variable release microcapsules
US7951390B2 (en) * 2004-06-30 2011-05-31 United Phosphorus, Ltd. Slow-release microcapsule composition for safe delivery of agriculturally active material
RU2403695C2 (en) * 2004-11-30 2010-11-20 Зингента Партисипейшнс Аг Method and composition for coating on material for reproduction
US20070138673A1 (en) * 2005-12-15 2007-06-21 Kaiping Lee Process for Preparing a High Stability Microcapsule Product and Method for Using Same
DE102006001941A1 (en) * 2006-01-14 2007-07-19 Bayer Technology Services Gmbh Layered silicate formulation for controlled release of active ingredient
EP2487192B1 (en) 2006-03-30 2021-03-03 FMC Corporation Microencapsulation of clomazone by means of a refined process and specific microcapsules produced thereof
RU2305595C1 (en) * 2006-05-11 2007-09-10 Открытое акционерное общество "Московский институт материаловедения и эффективных технологий" (ОАО "Московский ИМЭТ") Method of encapsulating grain material
US8916520B2 (en) * 2009-03-04 2014-12-23 Dow Agrosciences, Llc. Microencapsulated insecticide formulations
EP2424350A1 (en) 2009-04-30 2012-03-07 Gat Microencapsulation, AG Agrochemical formulations of microcapsules for compounds containing carboxamide groups
AU2011292159A1 (en) * 2010-08-18 2013-01-24 Gowan Comercio Internacional E Servicos Limitada Improved processes for the control of undesired vegetative growth in crops
CN103221070B (en) 2010-08-30 2019-07-12 哈佛大学校长及研究员协会 Shear for stenotic lesion and thrombolytic therapy controls release
US9206381B2 (en) 2011-09-21 2015-12-08 Ecolab Usa Inc. Reduced misting alkaline cleaners using elongational viscosity modifiers
US20140287920A1 (en) * 2011-11-02 2014-09-25 Deepak Pranjivandas Shah Variable Release Water Dispersible Granule Composition
ES2681231T3 (en) * 2011-12-27 2018-09-12 Dow Global Technologies Llc Microcapsules
RU2488437C1 (en) * 2012-04-19 2013-07-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Курская государственная сельскохозяйственная академия имени профессора И.И. Иванова Министерства сельского хозяйства Российской Федерации Method of producing microcapsules of pesticides by nonsolvent precipitation method
US9637708B2 (en) 2014-02-14 2017-05-02 Ecolab Usa Inc. Reduced misting and clinging chlorine-based hard surface cleaner
WO2015175947A1 (en) * 2014-05-15 2015-11-19 The George Washington University Microencapsulation of chemical additives
WO2017205339A1 (en) 2016-05-23 2017-11-30 Ecolab Usa Inc. Reduced misting acidic cleaning, sanitizing, and disinfecting compositions via the use of high molecular weight water-in-oil emulsion polymers
CA3025288C (en) 2016-05-23 2021-05-18 Ecolab Usa Inc. Reduced misting alkaline and neutral cleaning, sanitizing, and disinfecting compositions via the use of high molecular weight water-in-oil emulsion polymers
WO2018160818A1 (en) 2017-03-01 2018-09-07 Ecolab Usa Inc. Reduced inhalation hazard sanitizers and disinfectants via high molecular weight polymers
CN107439546A (en) * 2017-08-24 2017-12-08 合肥工业大学 A kind of hydrophobic pesticidal microcapsule formulations and suspending agent mix preparation and preparation method thereof
JP7783801B2 (en) 2019-07-12 2025-12-10 エコラボ ユーエスエー インコーポレイティド Alkaline cleaning agent with reduced mist due to the use of alkali-soluble emulsion polymer
JP7680764B2 (en) * 2019-09-27 2025-05-21 ザ ボード オブ トラスティーズ オブ ザ ユニバーシティ オブ アーカンソー Protection of rice against group 15 herbicides
MX2024011257A (en) 2022-03-15 2024-09-23 Mikrocaps D O O Biodegradable microcapsules based on crystalline materials and synthesis process.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1507739A (en) * 1975-11-26 1978-04-19 Wiggins Teape Ltd Capsules
US4157983A (en) * 1977-07-28 1979-06-12 Champion International Corporation Process for production of encapsulated water-dispersible materials
DE2832950A1 (en) * 1978-07-27 1980-02-21 Basf Ag HERBICIDAL AGENTS
US4280833A (en) * 1979-03-26 1981-07-28 Monsanto Company Encapsulation by interfacial polycondensation, and aqueous herbicidal composition containing microcapsules produced thereby
US4956129A (en) * 1984-03-30 1990-09-11 Ici Americas Inc. Microencapsulation process
JPS58124705A (en) * 1982-01-18 1983-07-25 Kureha Chem Ind Co Ltd Micro-capsule of agricultural chemical and its preparation
US4563212A (en) * 1983-12-27 1986-01-07 Monsanto Company High concentration encapsulation by interfacial polycondensation
EP0158449B1 (en) * 1984-03-30 1987-11-04 Stauffer Chemical Company Microcapsules and microencapsulation process

Also Published As

Publication number Publication date
DK0571396T3 (en) 1997-09-15
AU650504B2 (en) 1994-06-23
EP0571396A1 (en) 1993-12-01
KR100188899B1 (en) 1999-06-01
DE69125029D1 (en) 1997-04-10
HU215556B (en) 1999-01-28
BR9107288A (en) 1994-06-07
CA2101641C (en) 2001-02-06
DE69125029T2 (en) 1997-06-12
HU9301947D0 (en) 1993-09-28
EP0571396B1 (en) 1997-03-05
RU2108035C1 (en) 1998-04-10
KR930702890A (en) 1993-11-29
US5160529A (en) 1992-11-03
ZA92821B (en) 1992-10-28
ATE149285T1 (en) 1997-03-15
AU9105991A (en) 1992-09-07
CA2101641A1 (en) 1992-08-07
ES2098491T3 (en) 1997-05-01
WO1992013448A1 (en) 1992-08-20

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Legal Events

Date Code Title Description
HPC4 Succession in title of patentee

Owner name: ZENECA AG PRODUCTS INC., US

HPC4 Succession in title of patentee

Owner name: SYNGENTA CROP PROTECTION, INC., US